---
title: "Deye GB-SL-EU (5 modules in series) 18.4 kWh All-in-One Battery: Specs & Datasheet | ComparePV"
description: "Deye GB-SL-EU (5 modules in series) 18.4 kWh all-in-one home battery. Specs: 6000 cycles, 254.0 kg, 10 yrs warranty."
source: "https://comparepv.com/battery/gb-sl-eu-5-modules-in-series"
updated: 2026-01-10
---

# Deye GB-SL-EU (5 modules in series)


## Identity

- **Manufacturer:** Deye
- **Model:** GB-SL-EU (5 modules in series)
- **Series:** GB-SL-EU (All In One)
- **Usable energy:** 18.4 kWh
- **Voltage class:** High voltage
- **Cell technology:** LFP
- **Built-in inverter:** yes


## How it compares

Compared against 36 batteries from 12 to 20 kWh. Ranks are within that class.


| Measure | This battery | Class median | Standing | Rank in class |
| --- | --- | --- | --- | --- |
| Round-trip efficiency | - | 95.0% |  |  |
| Power per kWh | - | 0.68 |  |  |
| Cycle life | 6000 | 6000 | Typical | 5 |
| Weight per kWh | 13.8 | 12.4 | Typical | 23 |
| Warranty | 10 yrs | 10 yrs | Typical | 3 |


## Specification


### Capacity

- **Usable energy:** 18.4 kWh
- **Nominal energy:** 20.45 kWh
- **Depth of discharge:** 90 %
- **Module energy:** 4.09 kWh
- **Modules per stack:** 2 to 6
- **Max system capacity:** 24.5 kWh
- **Units in parallel:** 10


### Power

- **Max discharge current:** 40 A
- **Max charge current:** 40 A
- **Peak discharge current:** 50 A


### Efficiency and lifetime

- **Cycle life:** 6000 cycles
- **Capacity at end of life:** 70 %


### Cells and voltage

- **Voltage class:** High voltage
- **Nominal voltage:** 512.0 V
- **Operating voltage:** 179 to 691 V
- **Cell technology:** LFP
- **Cell management:** Cobalt-free, Thermal management


### Built-in inverter

- **Phases:** Three-phase
- **MPPT trackers:** 2


### Physical

- **Dimensions:** 1760 × 540 × 385 mm
- **Weight:** 254.0 kg
- **Enclosure:** IP65
- **Mounting:** floor
- **Cooling:** passive
- **Noise:** 55 dB
- **Operating temperature:** -20 to 60 °C


### Compatibility

- **Protocols:** RS485, CAN, CAN2.0


### Warranty and certificates

- **Warranty:** 10 years
- **Certifications:** CE, IEC 62619, VDE 2510-50, UN38.3, CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE 0126-1-1, RD 1699, C10-11, IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2


## About this series

The GB-SL-EU (All In One) series is an integrated energy storage system of a stackable type, where the hybrid inverter and high-voltage battery pack form a single, cohesive system-eliminating cable mess between modules. Its standout features are the **all-in-one construction** and **high-voltage modular architecture**, which enhance efficiency and simplify servicing. The applied chemistry, **LFP (LiFePO4)**, prioritizes thermal safety, stable operation, and long lifespan-offering a practical advantage over NMC in applications demanding high-impact use and parameter repeatability.

In practice, the declared **over 6000 cycles** and **10-year warranty** ensure predictable energy storage costs and trouble-free operation for years. The system is scalable by adding modules and enabling parallel operation of multiple units, making it suitable from single-family homes to small businesses, and even off-grid and backup applications. The GB-SL-EU works with both on-grid and off-grid installations, as well as hybrid systems, including those capable of energy harvesting from generators.


## Datasheet

[Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/batteries/gb-sl-eu-42ac8e3f2627.pdf)


## Alternatives


| Battery | Usable energy | Round-trip | Power | Voltage | Difference |
| --- | --- | --- | --- | --- | --- |
| [Deye GB-L20](https://comparepv.com/battery/gb-l20) | 18.4 kWh |  | 20.5 kW | HV | Similar on paper |
| [Solplanet Ai-HB 200A](https://comparepv.com/battery/solplanet-ai-hb-200a) | 18.43 kWh | 95.0% | 12.3 kW | HV | Similar on paper |
| [Deye BOS-G20](https://comparepv.com/battery/bos-g20) | 18.43 kWh |  |  | HV | Similar on paper |
| [Dyness Tower Pro TP19](https://comparepv.com/battery/dyness-tower-pro-tp19) | 18.24 kWh | 95.0% | 19.2 kW | HV | -0.2 kWh |
| [FoxESS ECS2900-H7](https://comparepv.com/battery/fox-ess-ecs2900-h7) | 18.14 kWh | 95.0% |  | HV | -0.3 kWh |
| [FoxESS ECS4300H-H5](https://comparepv.com/battery/fox-ess-ecs4300h-h5) | 18.67 kWh | 95.0% |  | HV | +0.3 kWh |
| [Dyness Tower T17](https://comparepv.com/battery/dyness-tower-t17) | 17.76 kWh |  | 10.7 kW | HV | -0.6 kWh |
| [FoxESS HS20](https://comparepv.com/battery/foxess-hs20) | 19.06 kWh |  |  | HV | +0.7 kWh |


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Source: https://comparepv.com/battery/gb-sl-eu-5-modules-in-series